Valve reamer and refacer.



E. J. DICKSON.

VALVE REAMER AND REFACER. APPLICATION man JULY 22. I915.

2 SHEETS-SHEET I.

Paferted Aug 14, 1917.

E3 nuamtez E. J. DICKSON. VALVE REAMER AND REFACEH. APPRICATION FILED JULY 27,19 6.

2 SHEETSSHEET 2.

' (Jumbo; 9

Qttozmu z Patented Aug. 14, 1917.

- To all whom it may concern:

PATIENT EDWARD J. 'nrcxsoiv, or 'wnNAroHEE, wesnmqtrori. "I: l

Be it known that I, EDWARD J. DICKSON, a citizen of the United States, residing at W'enatchee, in the county of Chelan and tate of Washington. have invented certain new and useful Improvements in Valve earners and Refacers, of, which the fol- "lowing is a specification signed to roam th This invention relates to new and useful improvements in valve grinding devices and: -more particularly to 'a valve reamer and re- "facer, and the primary object of the invention is to provide a device of this character 'WhiCh will enable the valve seat to be reamed and with a slight operation also permit the valve to be re-faced Within the engine. l

A further object of the invention resides in providinga device of this character which is so designed and applied to use, whereby to utilize the valve stem; as a pivot .in the actuation thereof.

Still another object of the inv sides in pr viding a reainer head or member .Qff' substantially inverted cone-shaped design, the Wall oflwhich consists of a plurality oil-ribs, the innerand outer edges of said ribs being constructed to form cutting faces.

A still further object resides in providing a device the outer'edges of which are de e valve seat and the inner edges of which are designed to re-face the valve.

A still further object of the invention resides in providing a device which is simple and durable in construction, inexpensive to manufacture and one which will be very 'efiicient and useful in operation.

,With these and other objects in view, invention consists in the novel features of construction, combination and arrangement of parts as will behereinafter referred to and more particularly pointed out in the specification and claims,

In-the accompanying drawings forming a part of this ap'plica'tion:

Figure 1 is a sectionthrough a cylinder head showing a deviceconstructed in ac cordance. with -my' invention and applied to use; I s v Fig. 2 is a perspective view. of the hand" operating portion of thedevice with a portion of a tool support thereon;

ig. 3 is a' similar view of the roaming and re-facing 'incmher removed;

ention re- Specification of Letters Patent. Patented Application filed July 27, 1916. seal-.11 No. 111,56

cutting or: facing VALVE REAMER Ann REFACER.

Fig. 4 is a side" elevation, sec tion, of, the operat'ng member removed; and Fig. 5- is a perspective view. of'a slightly modified form of the invention. V

In describ' to the drawings in which similar reference characters designate -corresponding parts throughout the several views. and in'which l designates a cylinder mg the invention; I shall refer C head having" a f" threaded opening '52 therein whereby entrance may be had thereto and'the'usual plug 3 is provided for closing saidopening. Arranged in thehead ,is the valve seats against which is adapt valve 5, the latter being provided with'the depending stem 6. The valve 5 is provided in its upper face with, the usual recess or slot 7, although in my improved device I ed to be seatedTthe have provided'means for operating valveswith other recesses later.

My improved reamer therein as will appear and re-facer consists of a substantially inverted conevshapcd :heador body member 8, th

upper annular rim 9, and a lower collar'lO, said rim and collar being connected together by means of a plurality of ribs or the like 11. This member 8 is cast or -otherwise constructed of metal and the ribs have their outer and] inner edges designed toform' cut ting edges respectively designated as-12 and 18. These ribs 11 may, therefore, be termed tools, andthe same are so constructed as to. provide the same angle with res ec't to a vertical inneran outer edges.

plane on boththe e same comprising an This member 8 is adapted to rest, when" placed in operation, shown in Fig; l of valve 5 is adapted to of the ribs 11 thereof, being directed throu member 8. A bushing 14 is loosely arranged in the collar '10 to re therethrough, and

on the valve seat' l, as the drawings, and the bushings w rest on the inner edges the stem o-f'said valve gh the collar 10 ofsaid ceive the stem 6 directly. f

ith bores of various sizes may be provided according? the diameter of the stem of the valve. I bushing is provided with a head or flange 15 at its upper end to rest of'the collar portion 10 The stem of the valve 5 is guided through this bushing and further guided through a bearing or the like 16 formed in the cylinder head just below the valve seat.

upon the upper ed e ids;

At the junction of the 9 with thea'ibs 11 of the member 8, an annular shoulder 17 is provided and formed on the inner pephery of said rim 9 at predetermined nits thereon are the'inwardly projecting lbbking lugs or the like 18.

A supporting member 19 is also provided areadapted to be received on the annular bushing 14 and guided shoulder 17 of the member 8 and the mem ber 19 may be turned so as to permit said feet 22 to be disposed immediately under and in locking position below the lugs 18,

as clearly shown in Fig. 1 of the drawings.

The collar 20 of the member 19 is internally threaded to receive in engagement therewith the externally threaded bushing 23, the latter extending a. short distance below the collar 20.

A stem 24' is adapted to be extended through the bore of the bushing 23 and has removably engaged with its lower end a head 25 which is tapered at its lower edge so as to form a key or the like for entrance into the slot 'l'- of the valve, as clearly shown in Fig. 1 of the drawings. The stem 24 has a bore therethrough adjacent its upper end and the handle or turning member 26 is provided to extend tlierethrough whereby the device may be manually operated.

In applying the device to use; the plug 3 is first removed from the cylinder head whereupon the valve 5 is removed from its seat. The member 8 is then positioned on the seat 4 and the valve positioned within theinterior of-the member 8 so that the stem 6 of said valve projects through the through the bearings 16. The supporting member 19 is then positioned on the member 8 so as to be located below the lugs 18 thereof, it being understood that the stem 24 is applied to said member 19 previously. The member 24 is then positioned so that the head-25 engages with the slot 7 in the valve and the bushing 23 is then turned home so as to permit the lower edge thereof to engage with the head 25 and lock the same against the valve 5. By so looking the head 25 against the valve 5, said valve is also locked tightly against the inner walls of the member 8 and the several parts of the device are thus locked The member 26 is then stem 243ml the complete device is turned as is usual in connection with the reaming of valves and valve seats. By so turning the device, the cutting faces 12 of the ribs 11 will ream the Valve seat t effectively. When this has been completed, the bushing- 23 is slightly retracted which releases the valve from binding tightly against the faces 13 of the ribs 11 and the tightly together. positioned on the valve is then placed in position with respect to the member 8. The stem 24 is then turned in the usual manner, the operator exerting pressure upon the bushing 23 with his fingers I to prevent turning of the member 8 on the valve seat, and the valve proper will be re faced by contacting with the facing edges 13 of the ribs 11. These ribs being spaced one from the other, as shown, will allow the carbon and other extraneous matter which forms on the valve to readily pass through the member 8 and fall therebclow. In both operations, to wit:-Thc reaming of the valve seat and the re-facing of the valve, the valve stem 6 is used as a pivot or the like for the complete device and as the facing edges 12 and 13 of the ribs 11 are disposed at the same angle with respect to the vertical plane, the valve seat and the valve will be respectively reamed and rc-faced at the proper angle so that the valve will seat properly after the operation is completed. lVhen the reaming and re-facing operations are completed, the device may be removed and the'valve replaced in the usual manner.

As stated above, the usual valves are provided with a slot or key way in the upper face thereof with which may be engaged a key or other instrument for operating the valve in the grinding or rc-facing process. However, it is a known fact that certain valves are provided with other means for the purpose of accomplishing this end. In Fig. 5 I have shown a slightly modified form of the invention, wherein a valve 27 has its upper face provided with a plurality of orifices 28. In order to operate my improved device in connection with a valve of this character, a disk-like head member 29 is provided which may he quickly and readily attached to the lower end of the stem 24, it being understood that the head member 25 in the ously attached thereto. This disk-like head member 29 is provided'with depending studs or the like 30 which are arranged in engagement with the holes 28. It will be readily seen that when the stem 24 is lowered the studs 30 may be entered into the orifices 28 and the valve operated as hereinabove described. Otherwise, this form of the device is the same as the preferred form above described.

From the above description of the construction of my improved device, the operution thereof will be readily understood and it will be seen that I have provided a simple inexpensive and efficient means for carrying out the objects of the invention.

While I have particularly described the elements best adapted to perform the functions set forth it is obvious that various changes in the form, proportion and in the preferred form is previsaid head having a bearing formed at its apex adapted to receive the valve stem of said valve, and havingits inner and outer walls constructed to form and provide facing edges, means for actuating the valve with respect to said head to re-face the valve, and additional means in connection with said valve actuating means whereby to lock the valve to the head and to actuate the head to ream the valve seat.

2. A device of the character described consisting of a hollow substantially coneshaped reaming head adapted to be arranged in a valve seat and to receive a valve therein, said head having a vertical hearing at its apex adapted to receive the valve stem of said valve and also having its inner and outer walls constructed to forinand provide facing edges, said head being adapted to receive said valve to direct the'stern thereof through said bearing so as to utilize the stem as a pivot for said head, an operating member for engaging the valve head to operate the latter with respect to the reaming head to re-tace said valve, and means for locking said operating member, the valve head and the reaming head together whereby to actuate the head to roam the A valve seat.

a Adevioeozt the character described. consisting of a reaming head of hollow substaw tially cone-shaped design adapted to be arranged in a valve seat and to receive a valve therein, said head having a vertical bearing at its apex, the inner and outer walls of said head being designed and constructed to form facing edges, said head being adapted to re ceive said valve to direct the stem thereof through the bearing, a bushin loosely mounted in said bearing, a supporting member removably engaged with the upper end of said reaming head, an operatingmem her extending through said supporting memher for engagement with the valve head to operate the latter with respect to the inner wall of the reaming head, and means in lock the operating; member, the valve and the reaming head together whereby the latter utilizes the valve stem as a pivot when operated to, ream the valve seat.

' 4;. A device of the character described con sisting of a hollow reaming head adapted to be arranged in a valve seat and toreceive a valve therein, said head having a bearing at its lower portion adapted to receive the stem of said valve and having its inner and outer walls constructed to provide facing edges, said head being adapted to receive said valve to permit the stem thereof to depend through said bearing, means for actuating the valve with respect to said head to re-face the valve, and additional means in connection with said actuating means whereby to lock the valve tothe head so that the latter may be actuated to ream the valve seat.

In testimony whereof I aiiix my signature. EDWARD J. DICKSGN. 

